Voltage modulation strategies and performance limitations of multilevel PWM rectifiers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A multilevel unidirectional PWM rectifier requires less switches compared with a bi-directional multilevel converter. With levels utilization decrease, semiconductor devices count is further reduced at the expense of compromising performance in terms of maximum modulation index without overmodulation vs. voltagecurrent phase shift angle. After introducing multilevel PWM rectifiers classification according to levels utilization, this paper presents carrier based voltage modulation strategies for rectifiers with maximal and minimal possible level utilization. Suggested modulation strategies are based on appropriate discontinuous voltage commands transformations that keep track of available switching states dependent on phase current directions. Performance limitations are easily derived using simple trigonometry without making use of space vector calculus.

Original languageEnglish
Title of host publication2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
Pages16-20
Number of pages5
DOIs
Publication statusPublished - Dec 1 2008
Event2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008 - Eilat, Israel
Duration: Dec 3 2008Dec 5 2008

Publication series

NameIEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

Other

Other2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008
CountryIsrael
CityEilat
Period12/3/0812/5/08

Keywords

  • Carrier based modulation (PWM)
  • Discontinuous pulse width modulation
  • Multilevel converter
  • Pwm rectifier

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Ruderman, A. (2008). Voltage modulation strategies and performance limitations of multilevel PWM rectifiers. In 2008 IEEE 25th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2008 (pp. 16-20). [4736542] (IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings). https://doi.org/10.1109/EEEI.2008.4736542